Home / 4,138.24-6,205.20-1,539.76

Finding the Fourth Proportional to 4,138.24, 6,205.20 and 1,539.76

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Solution

The fourth proportional to 4,138.24, 6,205.20 and 1,539.76 is: 2,308.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.24 : 6,205.20 = 1,539.76 : x
  2. Step 2: Convert to fraction form
    4,138.24/6,205.20 = 1,539.76/x
  3. Step 3: Cross multiply
    4,138.24x = 6,205.20 × 1,539.76
  4. Step 4: Simplify right side
    4,138.24x = 9,554,518.75
  5. Step 5: Solve for x
    x = 9,554,518.75/4,138.24
  6. Step 6: Final answer
    x = 2,308.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.